The car featured a 338 horsepower, four-barrel, 421-cube V-8 as standard equipment. However, the Catalina also had several issues, such as the valve cover gaskets leaking.
Despite being a larger car promising more space for the family, the engine under the 1977 LeMans Can Am’s hood proved it was still a muscle car at heart.
Referred to as the “poor man’s GTO,” the 1971 GT-37 was still a performance vehicle with a 400 cubic inch engine that could be upgraded to a 455 cubic inch engine.
While the GTO overshadowed it, the GT-37 began getting attention when people started looking at rebuilding these classic muscle cars as they had similar power to others.
The 1969 Grand Prix may have been a mid-sized vehicle, but it wasn’t any less of a muscle car. It came with a 370-horsepower 428 engine or 390-horsepower 428 H.O.
The new federal regulations that came into play to quell pollution in 1973 resulted in a GTO with much of its power taken out despite having a 400 cubic inch V-8 engine.